Third, we focus on the discussion about the relationship between RC and working memory. Working memory is a cognitive process that temporarily stores and manages information for carrying out complex cognitive tasks [1]}, [2]} and is believed to be involved in multiple cortical and subcortical regions [3]}, [4]}. However, elucidating the mechanism for task-dependent switching of the role of neural circuitry remains an unresolved issue. Multiple working memory models based on RC and their variants have been proposed, including the working memory model with generic cortical microcircuit models with feedback [5]}, the ESN-based working memory model [6]}, the reservoir model for storing different time constants of memory traces for reward expectation in reinforcement learning [7]}, the autonomously emerged working memory model through reward-modulated online learning rule that enables the same neural circuit to solve different tasks [8]}, and the comparative analysis of three working memory models including the RC-based one [9]}.
